Lidl also remained in second place behind Aldi as the cheapest supermarket for smaller shops throughout the year. Waitrose was £29.54 pricier than Aldi in December, at £129.83, and remained the most expensive supermarket for smaller shops for every month in 2024.

Harry Rose, Editor of Which? magazine, said: "Our research shows Aldi has retained its crown as the UK's cheapest supermarket in 2024. A shopper would have saved £393 on average, over the course of a year by choosing to shop at the German discounter rather than the most expensive alternative.

Which? looks at prices at Aldi, Asda, Lidl, Morrisons, Ocado, Sainsbury’s, Tesco and Waitrose to find the cheapest grocer - and this month, the bill for the winner came to £100.29 on average